US6619093B2 - Continuous extrusion apparatus - Google Patents

Continuous extrusion apparatus Download PDF

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Publication number
US6619093B2
US6619093B2 US10/086,634 US8663402A US6619093B2 US 6619093 B2 US6619093 B2 US 6619093B2 US 8663402 A US8663402 A US 8663402A US 6619093 B2 US6619093 B2 US 6619093B2
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US
United States
Prior art keywords
sectional area
continuous
cross
exit aperture
excess
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/086,634
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English (en)
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US20020121121A1 (en
Inventor
John Dawson
Daniel John Hawkes
Philip A. Jones
Stephen James Laidlow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pacific Century Motors Inc
BWE Ltd
GM Global Technology Operations LLC
Original Assignee
BWE Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BWE Ltd filed Critical BWE Ltd
Assigned to BWE LIMITED reassignment BWE LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAWSON, JOHN, HAWKES, DANIEL JOHN, LAIDLOW, STEPHEN JAMES
Publication of US20020121121A1 publication Critical patent/US20020121121A1/en
Assigned to REEDFARE LIMITED reassignment REEDFARE LIMITED DIRECTOR'S SERVICE AGREEMENT Assignors: JONES, PHILLIP ANDREW
Assigned to BWE LIMITED reassignment BWE LIMITED CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Assignors: REEDFARE LIMITED
Application granted granted Critical
Publication of US6619093B2 publication Critical patent/US6619093B2/en
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS, INC., PACIFIC CENTURY MOTORS, INC. reassignment GM GLOBAL TECHNOLOGY OPERATIONS, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/005—Continuous extrusion starting from solid state material

Definitions

  • This invention relates to continuous extrusion apparatus for the forming of metals by a continuous extrusion process in which feedstock is introduced into a plurality of circumferential grooves in a rotating wheel to pass into passageways formed between the grooves and arcuate tooling extending into the grooves.
  • WO96/29162 discloses continuous extrusion apparatus for the production of copper tubing having a rotatable wheel formed with a plurality of circumferential grooves provided with exit apertures in a die top and abutments displaced in the direction of rotation from the exit apertures.
  • each of the plurality of circumferential grooves is provided with an exit aperture in the die top having a cross-sectional area in excess of twice the radial cross-sectional area of the associated groove and smoothly leading to a passage of minimum length to connect into an annular extrusion die.
  • the exit aperture has a cross sectional area of three times the radial cross-sectional area of the associated groove.
  • the exit aperture has a cross-sectional area of four times the radial cross-sectional area of the associated groove.
  • the exit aperture has a cross-sectional area of five times the radial cross-sectional area of the associated groove.
  • the invention also includes an extrudate product in the form of a continuous, seamless, copper tube having a mass in excess of 500 kilograms.
  • seamless relates to copper tube formed as a tube by an extrusion process as distinct from a copper tube formed by edge joining a strip or strips along abutting edges.
  • FIG. 1 shows a cross-section of a die top 2 corresponding to the plan view of FIG. 2
  • a rotatable wheel (not shown) is formed with a pair of circumferential grooves registering with abutments 4 formed on the die top 2 .
  • the die top 2 Adjacent each abutment 4 , the die top 2 is provided with an exit aperture 6 having a cross-sectional area of approximately five times the radial cross-section of the associated groove.
  • Each aperture leads to a passage 8 smoothly diverging to connect into an extrusion die chamber 10 housing an annular extrusion die (not shown).
  • feedstock in the form of continuous rods of copper is fed to each of the grooves and, as the wheel rotates, extrudes through the exit apertures 6 adjacent the abutments 4 and the passages 8 and is extruded from the annular extrusion die in the die chamber 10 as seamless copper tubing.
  • the passages 8 are of minimum length, the two flows of extrudate through the passages combine at the annular die at a pressure only slightly lower than the pressure obtaining in the material in the grooves immediately adjacent the exit apertures 6 , with a resultant extrusion temperature at the annular die of approximately 750° C. as compared with a temperature of approximately 650° C. achieved in prior art arrangements.
  • the relatively high temperature and pressure at the annular die enables the extrusion of sound, thin-walled, copper tubing without imperfections likely to arise from combining flows of extrudate at lower temperatures and pressures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Formation And Processing Of Food Products (AREA)
US10/086,634 1999-10-12 2002-03-04 Continuous extrusion apparatus Expired - Fee Related US6619093B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9924160.6 1999-10-12
GB9924160 1999-10-12
GBGB9924160.6A GB9924160D0 (en) 1999-10-12 1999-10-12 Continuous extrusion apparatus
PCT/GB2000/003959 WO2001026834A1 (en) 1999-10-12 2000-10-12 Continuous extrusion apparatus

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/003959 Continuation WO2001026834A1 (en) 1999-10-12 2000-10-12 Continuous extrusion apparatus

Publications (2)

Publication Number Publication Date
US20020121121A1 US20020121121A1 (en) 2002-09-05
US6619093B2 true US6619093B2 (en) 2003-09-16

Family

ID=10862617

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/086,634 Expired - Fee Related US6619093B2 (en) 1999-10-12 2002-03-04 Continuous extrusion apparatus

Country Status (12)

Country Link
US (1) US6619093B2 (de)
EP (1) EP1220723B1 (de)
JP (1) JP2003511243A (de)
CN (1) CN1377306A (de)
AT (1) ATE381395T1 (de)
AU (1) AU779245B2 (de)
CA (1) CA2397807A1 (de)
DE (1) DE60037529T2 (de)
GB (1) GB9924160D0 (de)
RU (1) RU2247618C2 (de)
WO (1) WO2001026834A1 (de)
ZA (1) ZA200201684B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050268682A1 (en) * 2003-02-22 2005-12-08 Hawkes Daniel J Continuous extrusion apparatus
US20110162428A1 (en) * 2007-11-15 2011-07-07 Daniel John Hawkes Continuous extrusion apparatus
US11123532B2 (en) 2013-03-14 2021-09-21 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11172851B2 (en) 2014-03-13 2021-11-16 One Drop Biosensor Technologies, Llc System for monitoring body chemistry
US11272885B2 (en) 2013-03-14 2022-03-15 One Drop Biosensor Technologies, Llc Wearable multi-analyte microsensor
US11272866B2 (en) 2014-03-13 2022-03-15 One Drop Biosensor Technologies, Llc Wearable microneedle patch
USD988882S1 (en) 2021-04-21 2023-06-13 Informed Data Systems Inc. Sensor assembly
USD1076079S1 (en) 2021-04-21 2025-05-20 One Health Biosensing Inc. Applicator assembly
USD1086030S1 (en) 2021-04-21 2025-07-29 One Health Biosensing Inc. Charging station

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9924161D0 (en) * 1999-10-12 1999-12-15 Bwe Ltd Copper tubing
GB0423222D0 (en) * 2004-10-20 2004-11-24 Bwe Ltd Continuous extrusion apparatus
CN100431729C (zh) * 2006-09-29 2008-11-12 大连康丰科技有限公司 一种扩展挤压的连续挤压方法及装置
DE102012009337A1 (de) * 2012-05-10 2013-11-14 Volkswagen Aktiengesellschaft Kupferrohrleiter
CN107138549A (zh) * 2017-06-28 2017-09-08 太仓斯普宁精密机械有限公司 一种具有旋转出料底板的挤压模具
CN112264473A (zh) * 2020-08-24 2021-01-26 中国工程物理研究院材料研究所 一种制备高化学活性金属细晶和超细晶材料的装置及方法

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2078584A (en) 1980-06-10 1982-01-13 Atomic Energy Authority Uk Apparatus for Continuous Extrusion
JPS57159213A (en) * 1981-03-26 1982-10-01 Sumitomo Electric Ind Ltd Manufacture of composite wire rod
GB2103527A (en) * 1981-08-12 1983-02-23 Atomic Energy Authority Uk Continuous extrusion
JPS59223113A (ja) * 1983-06-03 1984-12-14 Sumitomo Heavy Ind Ltd 回転ホイ−ル式金属連続押出機
US4598567A (en) 1983-06-06 1986-07-08 Backus Henricus P Apparatus for continuous extrusion of metals
GB2209295A (en) 1987-09-03 1989-05-10 Bicc Plc Continuous extrusion of tubes
EP0398747A1 (de) 1989-05-18 1990-11-22 Bwe Limited Vorrichtung zum kontinuierlichen Strangpressen
US5284428A (en) * 1991-12-27 1994-02-08 Southwire Company Apparatus for conform extrusion of powder feed
US5595084A (en) * 1994-04-12 1997-01-21 Yugen Kaisha Yano Engineering Hollow die and an apparatus for continuous extrusion forming of hollow articles
EP0822016A1 (de) 1996-06-26 1998-02-04 Outokumpu Copper Products Oy Verfahren zur Herstellung eines bimetallischen Materials
US5813270A (en) 1995-03-17 1998-09-29 Bwe Limited Continuous extrusion apparatus
GB2326121A (en) 1997-06-11 1998-12-16 T & N Technology Ltd Improved continuous rotary extrusion machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2871945B2 (ja) * 1992-03-09 1999-03-17 古河電気工業株式会社 回転ホイール式押出法によるアルミニウム製管の製造方法
RU2053033C1 (ru) * 1993-07-01 1996-01-27 Акционерное общество закрытого типа "Александра" Способ непрерывного прессования цветных металлов и сплавов и устройство для его осуществления
JPH09225523A (ja) * 1996-02-27 1997-09-02 Fujikura Ltd 分散強化材の製造方法

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2078584A (en) 1980-06-10 1982-01-13 Atomic Energy Authority Uk Apparatus for Continuous Extrusion
JPS57159213A (en) * 1981-03-26 1982-10-01 Sumitomo Electric Ind Ltd Manufacture of composite wire rod
GB2103527A (en) * 1981-08-12 1983-02-23 Atomic Energy Authority Uk Continuous extrusion
JPS59223113A (ja) * 1983-06-03 1984-12-14 Sumitomo Heavy Ind Ltd 回転ホイ−ル式金属連続押出機
US4598567A (en) 1983-06-06 1986-07-08 Backus Henricus P Apparatus for continuous extrusion of metals
GB2209295A (en) 1987-09-03 1989-05-10 Bicc Plc Continuous extrusion of tubes
EP0398747A1 (de) 1989-05-18 1990-11-22 Bwe Limited Vorrichtung zum kontinuierlichen Strangpressen
US5152163A (en) * 1989-05-18 1992-10-06 Bwe Limited Continuous extrusion apparatus
US5284428A (en) * 1991-12-27 1994-02-08 Southwire Company Apparatus for conform extrusion of powder feed
US5595084A (en) * 1994-04-12 1997-01-21 Yugen Kaisha Yano Engineering Hollow die and an apparatus for continuous extrusion forming of hollow articles
US5813270A (en) 1995-03-17 1998-09-29 Bwe Limited Continuous extrusion apparatus
EP0822016A1 (de) 1996-06-26 1998-02-04 Outokumpu Copper Products Oy Verfahren zur Herstellung eines bimetallischen Materials
GB2326121A (en) 1997-06-11 1998-12-16 T & N Technology Ltd Improved continuous rotary extrusion machine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Search Report (3 pgs.) for PCT/GB00/03959, dated Feb. 1, 2001.

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050268682A1 (en) * 2003-02-22 2005-12-08 Hawkes Daniel J Continuous extrusion apparatus
US6988389B2 (en) 2003-02-22 2006-01-24 Bwe Limited Continuous extrusion apparatus
US20060156782A1 (en) * 2003-02-22 2006-07-20 Hawkes Daniel J Continuous extrusion apparatus
US7194885B2 (en) 2003-02-22 2007-03-27 Bwe Limited Continuous extrusion apparatus
US20110162428A1 (en) * 2007-11-15 2011-07-07 Daniel John Hawkes Continuous extrusion apparatus
US8061173B2 (en) 2007-11-15 2011-11-22 Bwe Limited Continuous extrusion apparatus
US11896793B2 (en) 2013-03-14 2024-02-13 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11903738B2 (en) 2013-03-14 2024-02-20 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11197985B2 (en) 2013-03-14 2021-12-14 One Drop Biosensor Technologies, Llc Method of manufacturing multi-analyte microsensor with microneedles
US11272885B2 (en) 2013-03-14 2022-03-15 One Drop Biosensor Technologies, Llc Wearable multi-analyte microsensor
US11123532B2 (en) 2013-03-14 2021-09-21 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11896792B2 (en) 2013-03-14 2024-02-13 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11865289B2 (en) 2013-03-14 2024-01-09 One Drop Biosensor Technologies, Llc On-body microsensor for biomonitoring
US11819650B2 (en) 2013-03-14 2023-11-21 One Drop Biosensor Technologies, Llc Method of manufacturing multi-analyte microsensor with microneedles
US11517222B2 (en) 2014-03-13 2022-12-06 One Drop Biosensor Technologies, Llc Biomonitoring systems and methods of loading and releasing the same
US11357430B2 (en) 2014-03-13 2022-06-14 One Drop Biosensor Technologies, Llc Biomonitoring systems and methods of loading and releasing the same
US11291390B2 (en) 2014-03-13 2022-04-05 One Drop Biosensor Technologies, Llc Wearable microneedle patch
US11272866B2 (en) 2014-03-13 2022-03-15 One Drop Biosensor Technologies, Llc Wearable microneedle patch
US11172851B2 (en) 2014-03-13 2021-11-16 One Drop Biosensor Technologies, Llc System for monitoring body chemistry
US12303260B2 (en) 2014-03-13 2025-05-20 One Health Biosensing Inc. System for monitoring body chemistry
US12446801B2 (en) 2014-03-13 2025-10-21 One Health Biosensing Inc. Biomonitoring systems and methods of loading and releasing the same
US12543976B2 (en) 2014-03-13 2026-02-10 One Health Biosensing Inc. System for monitoring body chemistry
USD988882S1 (en) 2021-04-21 2023-06-13 Informed Data Systems Inc. Sensor assembly
USD1038788S1 (en) 2021-04-21 2024-08-13 One Health Biosensing Inc. Sensor assembly
USD1076079S1 (en) 2021-04-21 2025-05-20 One Health Biosensing Inc. Applicator assembly
USD1086030S1 (en) 2021-04-21 2025-07-29 One Health Biosensing Inc. Charging station

Also Published As

Publication number Publication date
CN1377306A (zh) 2002-10-30
DE60037529T2 (de) 2008-04-30
DE60037529D1 (de) 2008-01-31
WO2001026834A1 (en) 2001-04-19
EP1220723B1 (de) 2007-12-19
RU2247618C2 (ru) 2005-03-10
GB9924160D0 (en) 1999-12-15
ATE381395T1 (de) 2008-01-15
JP2003511243A (ja) 2003-03-25
AU779245B2 (en) 2005-01-13
AU7933100A (en) 2001-04-23
EP1220723A1 (de) 2002-07-10
US20020121121A1 (en) 2002-09-05
CA2397807A1 (en) 2001-04-19
ZA200201684B (en) 2003-08-27

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AS Assignment

Owner name: BWE LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DAWSON, JOHN;HAWKES, DANIEL JOHN;LAIDLOW, STEPHEN JAMES;REEL/FRAME:012901/0473;SIGNING DATES FROM 20020323 TO 20020402

AS Assignment

Owner name: REEDFARE LIMITED, UNITED KINGDOM

Free format text: DIRECTOR'S SERVICE AGREEMENT;ASSIGNOR:JONES, PHILLIP ANDREW;REEL/FRAME:014272/0535

Effective date: 19880421

Owner name: BWE LIMITED, UNITED KINGDOM

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Effective date: 20101130